title: Novel betaines from a micronesian sponge Dysidea herbacea.
mesh_terms: D000818:Animals; D001622:Betaine / Q000031:analogs & derivatives* / Q000302:isolation & purification*; D002236:Carbohydrate Conformation; D009682:Magnetic Resonance Spectroscopy; D008849:Micronesia; D015394:Molecular Structure; D011161:Porifera / Q000737:chemistry*
chemical_list: D001622:Betaine